Thanks for the comments about my clip. It actually is from a Broadway show.
And no, I can't do falsetto. The only singer on T I ever talked to was Lucas Silveira, and he said he lost his falsetto for a while as his voice was changing but that it eventually came back. That's what I'm hoping for.
Then again, I'm trying to hit it the same way I would have with my female head voice, so maybe I need to try doing it a different way. I will wait for my teacher though, because I don't want to hurt my voice.